CGLIB代理

最新推荐文章于 2025-07-06 18:53:21 发布

winbps

最新推荐文章于 2025-07-06 18:53:21 发布

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本文详细介绍了如何使用Java AOP和Spring框架实现权限检查机制，通过配置Spring AOP切面和切入点，对关键业务方法进行前置拦截，确保只有具备相应权限的用户才能调用这些方法。

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</pre><pre name="code" class="java">package com.test.aop;

public class TestManagerImpl {

	public void addUser(String name, String password) {   
        System.out.println("TestManagerImpl.addUser() -- name: " + name);   
    }   
  
    public void delUser(int id) {   
        System.out.println("TestManagerImpl.delUser() -- id: " + id);   
    }   
  
    public void modifyUser(int id, String name, String password) {   
        System.out.println("TestManagerImpl.modifyUser() -- id: " + id);   
    }   
}

</pre><pre name="code" class="java">package com.test.aop;

import org.aspectj.bridge.SourceLocation;
import org.aspectj.lang.JoinPoint;

public class TestSecurityManagerImpl {


<span style="white-space:pre">	</span> public void checkSecurity(JoinPoint joinPoint) {   
<span style="white-space:pre">	</span>        Object[] args = joinPoint.getArgs();   
<span style="white-space:pre">	</span>        if (args != null) {   
<span style="white-space:pre">	</span>            for (int i = 0; i < args.length; i++) {   
<span style="white-space:pre">	</span>                System.out.println(args[i]);   
<span style="white-space:pre">	</span>            }
<span style="white-space:pre">	</span>        }
<span style="white-space:pre">	</span>        Object target = joinPoint.getTarget();
<span style="white-space:pre">	</span>        Class<?> classe = joinPoint.getClass();
<span style="white-space:pre">	</span>        Object his =  joinPoint.getThis();
<span style="white-space:pre">	</span>        org.aspectj.lang.Signature signature =  joinPoint.getSignature();
<span style="white-space:pre">	</span>        SourceLocation sourceLocation = (SourceLocation) joinPoint.getSourceLocation();
<span style="white-space:pre">	</span>        
<span style="white-space:pre">	</span>        System.out.println(joinPoint.getTarget());
<span style="white-space:pre">	</span>        //...    
<span style="white-space:pre">	</span>        //...   
<span style="white-space:pre">	</span>        //System.out.println("进行安全检查！！");   
<span style="white-space:pre">	</span>    }   
}

package com.test.aop;

import org.springframework.beans.factory.BeanFactory;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import junit.framework.TestCase;

public class TestAop extends TestCase {

	public void testAop1() {   
        //读取配置文件,获取BeanFactory   
        BeanFactory factory = new ClassPathXmlApplicationContext("app/config/applicationContext.xml");   
        TestManagerImpl userManager = (TestManagerImpl)factory.getBean("testManager");   
        userManager.addUser("张三", "123");   
      userManager.delUser(1);   
      userManager.modifyUser(1, "李四", "abc");   
    }   
}

<beans xmlns="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop"  
    xmlns:tx="http://www.springframework.org/schema/tx" xmlns:p="http://www.springframework.org/schema/p" xmlns:util="http://www.springframework.org/schema/util" xmlns:jdbc="http://www.springframework.org/schema/jdbc"  
    xmlns:cache="http://www.springframework.org/schema/cache"  
    xsi:schemaLocation="  
    http://www.springframework.org/schema/context  
    http://www.springframework.org/schema/context/spring-context.xsd  
    http://www.springframework.org/schema/beans  
    http://www.springframework.org/schema/beans/spring-beans.xsd  
    http://www.springframework.org/schema/tx  
    http://www.springframework.org/schema/tx/spring-tx.xsd  
    http://www.springframework.org/schema/jdbc  
    http://www.springframework.org/schema/jdbc/spring-jdbc-3.1.xsd  
    http://www.springframework.org/schema/cache  
    http://www.springframework.org/schema/cache/spring-cache-3.1.xsd  
    http://www.springframework.org/schema/aop  
    http://www.springframework.org/schema/aop/spring-aop.xsd  
    http://www.springframework.org/schema/util  
    http://www.springframework.org/schema/util/spring-util.xsd"> 
    
    <!-- 启用spring mvc 注解 -->
    <context:annotation-config />
    
    <!-- 配置使Spring采用CGLIB代理 -->  
    <aop:aspectj-autoproxy proxy-target-class="true" />  
	

	<bean id="testManager" class="com.test.aop.TestManagerImpl"></bean>
	<bean id="testSecurityManager" class="com.test.aop.TestSecurityManagerImpl"></bean>
	
	<aop:config>  
        <aop:pointcut id="allAddMethod" expression="execution(* add*(..))"/>  
        <aop:aspect id="securityAspect" ref="testSecurityManager">  
            <aop:after pointcut-ref="allAddMethod" method="checkSecurity"/>  
        </aop:aspect>        
    </aop:config>  
</beans>